Device for boshing tinplate and sheet bar sections



D. J. THOMAS ET AL DEVICE FOR BUSHING TIN PLATE AND SHEET BAR SECTIONSFiled Feb. 4, 1927 Patented Oct. 30, 1928.

UNITED STA TES PATENT OFFICE.

DAVID JOHN-THOMAS, or CARDIFF, AND JOHN vIoK nr, or TONTEG LLANTWITVARDRE, WALES.

DEVICE FOR BOSI-IING 'lTI NP LATE AND sHEE'r BAR SECTIONS.

Application filed February 4,1927, Serial No. 165,879,-and in' GreatBritainFebruary 16,1926.

This invention relates to a device for boshing articles such as tinplate and sheet bar sections. The existingmethod of boshing sucharticles consists in inimers'ingthe articles on the end of long tongssuch-as are usedfor liftin a trough or tank. This method is not onlydifiicultto perform but cumbersome and the result is usually a partialboshing which i's-unsatisfactory as the article is left in a dirty andporous state. The chief object of this invention is to provide a simpledevice whereby boshing can be completely and satisfactorily carried outwithout undue loss of heat in the articles undergoing boshing.

According to the lnvention the boshing tank consists in the combinationof an oscillatoryv or movable platform for immersing the articles whichare carried thereon into the liquid in the tank and means formomentarily im-' fully with reference to the accompanying drawings.

tion.

Fig. 2 shows an endview of the device of Fig. 1.

for immersing the articles carried thereon into the liquid in the tank.The said platform is carried on a spindle E which engages a slot C atone end of the tank and a hole B at the opposite end. The spindle E isshown square throughout the greater part of its length but the portionthereof engaging with the opened.

top slot C and the hole at B is formed circular to permit rotationthereof. In Fig. 1 a portion of the spindle has been broken away, toshow the circular cross section thereof in the slot C. By mounting thespindle in this manner the platform can be readily removed when requiredfrom the tank by lifting the spindle out of the slot C and drawing it ina direction mg and carrying metal into a liquid contained 1.ingoperation.

A is the boshing an; and 1) is the platform The platform is perforatedand made of H shape to give free access of liquid around the articlesfor thorough boshing and also to givethe workman necessary tong room atR. for placing and removing them on and from the platform. The outer orfree ends of the platform are bent upwards at D and Dtoprevent'thearticles from slipping off when the platform is immersed inthe liquid in the tank. F is the foot leverwhich is of the bell cranktype and is attached to the "spindleE- W are the counterbalance weightsfitted to the lever F, said weights being varied in size or numberaccording to the weight of the artiof sufficient length passes throughthe Weights W to reach a lever Y which operates to lift'a splash plate Son the down or operative stroke of the foot lever F, the lever Y beingpivoted on a bolt or spindle K. A similar lever is pivoted at Jon theopposite side of the tank A.

Toperform a boshing operation the foot lever F is depressed whereuponthe platform D is turned downwards and becomes immersed in theliquid inthe tank thereby subjecting the articles carried by the platform tothe'boshs On releasing the pressure on the foot lever F the platform isreturned to the original position by the counterbalance weights W. Whenthe foot lever is depressed the splash plate is raised as aforesaid toprevent the liquid inthe tank from being scatfitted for cleaningpurposes also suitable inlet and outlet orifices tomaintain the correctliquid level in the tank A. i

What we claim and desire to secure by Letters Patent of the UnitedStates is 1. Adevice for boshing'articles such as tin cles on theplatform D. A bolt or member H I. tered or thrown outside. Ahand doormaybe Fig. 1 illustrates in perspective a device constructed inaccordance with the inven plate andsheet bar sections consisting in thecombination of a tank for containing liquid having a platformforcarrying the articles to be boshed pivotally mounted on the said tankand-means forpivoting said platform whereby the articles are momentarilyimmersed in the liquid in said tank.

2. A device for boshing articles such as tin 7 plate and sheet barsections consisting in the combinationof a tank for containing liquidhaving a platform for carrying the articles to be boshed pivotallymounted on the said tank, means for pivoting said platform whereby thearticles are momentarily immersed in the liquid in said tank and meansfor rapidly re boshing operation.

turning said platform into a position wherein the boshed articles can bereadily removed therefrom.

r 3. A device for boshing articles such as tin plate and sheet'barsections consisting in the combination of a tank for containing iiqnidsaid tank, a lever for immersing said platform in the liquid in saidtank-and a counterbalanoe weight cooperating with said lever forreturning said platform from the immersed position into a positionwherein the boshed articles can be readily removed therefrom.

' 5. A device forboshing articles such as tin a plate and sheet barsections consisting in the combination of a tank for containing liquid,a platform for carrying the articles to be boshed, a spindle on saidplatform mounted in the sides of said tank, a double: arinedlever 'onsaid spindle, a pedal on one arm of said lever and aicounterbalanceWeight onthe other arm n of said lever. a a v 6. A device for bosh ngarticles SuQh tLStlH plate and sheet bar sections consistlng n thecombinationof a tank for containing liquid, a 7

platform for carrying the articles to be boshed, a spindle on sa dplat'torm mounted 1n the sides of said tank, adouhle armed lever on saidspindle, a pedal on one arm-ct said lever, a counterbalance Weight ontheother arm of said lever, a sl'idably mounted shield plate having leversat its ends pivotedto said tank and a member extending from said counterbalance Weight and engaging with one otsa'id levers forra si-ng saidshield plate nto its splash preventing position.

DAVID JOHN; THOMAS.

JOHN LEVIYIGKERY.

